It’s commonly quoted as fact that in nature, no food or vegetable is naturally blue. This information was again disputed recently by the re-introduction of blue Smarties1, this time using 100% natural seaweed extract to create the blue colour. Additional support for the “blue-in-nature” brigade comes in the form of blue trees spotted on Google Earth. Firstly, in Australia’s Mount Annan Botanic Garden there’s a strikingly-blue tree. The Garden’s website explains that the tree has been dead for many years, but is home to various types of termites and slaters. So, it’s the termites that make the tree…